Chimney

ABSTRACT

A chimney, including: a chimney cylinder, and a smoke inlet. The smoke inlet is arranged on a lower part of the chimney cylinder, and includes a first side wall and a second side wall on a cross-section of the chimney cylinder. An angle α is formed between the first side wall and a first tangent at an intersection of the first side wall and an outer wall of the chimney cylinder, and 10°≦α≦90°. An angle β is formed between the second side wall and a second tangent at an intersection of the second side wall and the outer wall of the chimney cylinder, and 10°≦β≦90°.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of International Patent Application No. PCT/CN2011/076184 with an international filing date of Jun. 23, 2011, designating the United States, now pending, and further claims priority benefits to Chinese Patent Application No. 201020240085.8 filed Jun. 29, 2010. The contents of all of the aforementioned applications, including any intervening amendments thereto, are incorporated herein by reference. Inquiries from the public to applicants or assignees concerning this document or the related applications should be directed to: Matthias Scholl P.C., Attn.: Dr. Matthias Scholl Esq., 14781 Memorial Drive, Suite 1319, Houston, Tex. 77079.

FIELD OF THE INVENTION

The invention relates to a chimney, and more particularly to a chimney that is non-corrosive, energy-saving, and capable of collecting particulates (soot, dust, etc.).

BACKGROUND OF THE INVENTION

A typical chimney includes a flue which is linear and connected to the chimney via a central line. However, this structure has a large resistance and a poor particulate collecting capability. Furthermore, smoke flows upwards along the inner wall of the chimney cylinder, which results in corrosion on the liner and cracks in the chimney cylinder after long term use.

SUMMARY OF THE INVENTION

In view of the above-described problems, it is one objective of the invention to provide a chimney. The chimney causes an eddy flow of the smoke, and removes particulates (soot, dust, etc.) from the smoke when the smoke climbs spirally upwards in the chimney cylinder. The chimney is energy-saving and has a small resistance, strong capability of particulates collection, simple structure, and no corrosion on the liner. Thus, it is applicable in reconstruction of conventional chimneys and construction of new chimneys.

To achieve the above objective, in accordance with one embodiment of the invention, there is provided a chimney, comprising: a chimney cylinder, and a smoke inlet. The smoke inlet is arranged on a lower part of the chimney cylinder, and comprises a first side wall and a second side wall on a cross-section of the chimney cylinder. An angle α is formed between the first side wall and a first tangent at an intersection of the first side wall and an outer wall of the chimney cylinder, and 10°≦α≦90°. An angle β is formed between the second side wall and a second tangent at an intersection of the second side wall and the outer wall of the chimney cylinder, and 10°≦β≦90°.

In a class of this embodiment, at least one smoke inlet is designed. When a plurality of smoke inlets is employed, the smoke inlets are evenly arranged along a circumferential direction of the chimney cylinder. Smokes from different smoke inlets spirally flow in a same direction and to achieve the objective of particulates collecting and non-corrosion. Also, a single smoke inlet can be employed to produce an eddy flow, and achieve the objective of particulates collecting and non-corrosion.

In a class of this embodiment, the first side wall and the second side wall are formed by chamfering a part of two side walls of a conventional smoke inlet. The method has a large flow quantity of the smoke and a better flow pattern, which are conducive to improving the efficiency of particulates collection.

The second means is that, the first side wall and the second side wall are formed by constructing a new wall having a certain thickness next to two side walls of a conventional smoke inlet, and then chamfering a part of the new wall. This method not only increases the flow rate and the vorticity of the smoke, but also improves the flow pattern and the efficiency of particulates collection. For some of the chimneys, a groove is arranged on a bottom of the smoke inlet, which not only enlarges a cross section of the smoke inlet, but also maintains a sufficient flow quantity of the smoke, and a better flow pattern.

In a class of this embodiment, the cross-section of the smoke inlet in a radial direction is in a shape of a polygon, a circle, or an ellipse.

In a class of this embodiment, a baffle is arranged on at least one side wall of the smoke inlet. The baffle comprises two ends, one end is fixed on an inner wall, the outer wall, or a position between the inner wall and the outer wall of the chimney cylinder; and the other end extends inside the chimney cylinder. The baffle is a straight plate, a folded plate, an arc plate, or a curved plate. A plane b is limited by the end of the baffle fixed on the chimney cylinder and the other end of the baffle. An angle γ is formed between the plane and a perpendicular line of a tangent at a position where the baffle is fixed; and the angle γ is between 0° and 80°. The angle γ is preferably between 0° and 70°, which is more conducive to vent the smoke. If the baffle is designed as the arc plate protruding towards a center of the chimney cylinder, a better effect of smoke venting can be achieved.

When the smoke is drawn into the chimney from the smoke inlet, under the effect of the baffle, the smoke flows into the chimney cylinder and climbs up in a spiral certain direction, so that a low pressure area is formed in the center of the chimney cylinder. During the climbing process, large grains in the smoke are precipitated on a bottom of the chimney; whereas small grains are attached on the vapors and attracted into the center, so that small grains do not contact with the inner wall of the chimney but climb up along the center of the chimney until being discharged finally. In such a way, the objectives of particulate removal from the smoke and energy saving are achieved.

In chimney rebuilding, the baffle can be directly arranged inside the chimney cylinder with one end of the baffle disposed on one side wall of the smoke inlet. The angle α is formed between the first side wall and the first tangent at the intersection of the first side wall and the outer wall of the chimney cylinder, 10°≦α≦90°, and preferably 20°≦α≦85°. The angle β is formed between the second side wall and the second tangent at the intersection of the second side wall and the outer wall of the chimney cylinder, 10°≦β≦90°, and preferably 20°≦β≦85°. Thus, an inclined arrangement of the smoke inlet is achieved, which is conducive to a better flow pattern, and improves the efficiency of particulates collection and energy-saving.

For those chimneys having two smoke inlets, a preferable arrangement is that the two baffles of the smoke inlets are arranged in parallel, so that the eddy flow of the smoke in the same direction is formed inside the chimney cylinder.

Advantages of the invention are summarized below: first of all, the baffle arranged on one side wall of the smoke inlet is conducive to forming the eddy flow of the smoke, lower the resistance from the chimney, and improve the capability of particulate collection. Besides, vapors do not adhere to the inner wall of the chimney. Finally, the chimney has a simple structure, so that it is convenient to rebuild conventional chimneys, and popularize the chimney of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is described hereinbelow with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a chimney in accordance with one embodiment of the invention;

FIG. 2 is a cross-sectional view taken from line A-A in FIG. 1 after chamfering a part of side walls of a conventional smoke inlet (the baffle is a straight plate);

FIG. 3 is a cross-sectional view taken from line A-A in FIG. 1 after chamfering a part of side walls of a conventional smoke inlet (the chimney has only one smoke inlet);

FIG. 4 is a cross-sectional view taken from line A-A in FIG. 1 after chamfering a part of a new wall placed next to side walls of a conventional smoke inlet;

FIG. 5 is a cross-sectional view taken from line A-A in FIG. 1 after chamfering a part of side walls of a conventional smoke inlet (the baffle is a folded plate);

FIG. 6 is a cross-sectional view taken from line A-A in FIG. 1 after chamfering a part of side walls of a conventional smoke inlet (the baffle is an arc plate);

FIG. 7 is a cross-sectional view taken from line A-A in FIG. 1 after chamfering a part of side walls of a conventional smoke inlet (the baffle is a curved plate); and

FIG. 8 is a cross-sectional view of a chimney taken from line A-A in FIG. 1 and comprising a baffle one end of which is fixed on an outer wall of a chimney cylinder.

In the drawings, the following reference numbers are used: 1. Chimney cylinder; 2. Smoke inlet; 3. Baffle; 4. New wall; B. First side wall of smoke inlet; C. Second side wall of smoke inlet; B′. First side wall of conventional smoke inlet; C′. Second side wall of conventional smoke inlet; b. Plane limited by one end of baffle fixed on chimney cylinder and the other end of the baffle; d. Perpendicular line of tangent at a position where the baffle is disposed; α. Angle between a first side wall of a smoke inlet and a first tangent at an intersection of the first side wall and an outer wall of the chimney cylinder; β. Angle between a second side wall of a smoke inlet and a second tangent at an intersection of the second side wall and an outer wall of the chimney cylinder; and γ. Angle between a plane and a perpendicular line.

DETAILED DESCRIPTION OF THE EMBODIMENTS

To further illustrate the invention, experiments detailing a chimney are described below. It should be noted that the above examples are intended to describe and not to limit the invention.

EXAMPLE 1

A chimney, as shown in FIGS. 1-2, comprises: a chimney cylinder 1, and a smoke inlet 2 arranged on a lower part of the chimney cylinder 1. The smoke inlet 2 comprises a first side wall B and a second side wall C on a cross-section of the chimney cylinder 1. A baffle 3 has two ends, one end is disposed on a junction of the first side wall B of the smoke inlet 2 and an inner wall of the chimney cylinder 1, and the other end extends inside and close to a center of the chimney cylinder. The baffle 3 is a straight plate. An angle γ is formed between the baffle 3 and a perpendicular line d of a tangent at a position where the baffle 3 is disposed, and the angle γ is 35°. An angle α is formed between the first side wall B and a first tangent at an intersection of the first side wall B and an outer wall of the chimney cylinder 1, and the angle α is 45°. An angle β is formed between the second side wall C and a second tangent at an intersection of the second side wall C and the outer wall of the chimney cylinder 1, and the angle β is 45°.

The baffle is a folded plate, as shown in FIGS. 3 and 5, an arc plate shown in FIG. 6, or a curved plate shown in FIG. 7. A plane b is limited by the end of the baffle 3 fixed on the chimney cylinder 1 and the other end of the baffle 3. The angle γ between the plane b and the perpendicular line d is 0-70°, and preferably 60°. As shown in FIGS. 2-3, the number of the smoke inlets is designed as one, two, or several according to practical demands.

As shown in FIG. 2, the first side wall B and the second side wall C are formed by chamfering a part of two side walls B′, C′ of the conventional smoke inlet.

EXAMPLE 2

A chimney, as shown in FIGS. 1-4, comprises: a chimney cylinder 1, and a smoke inlet 2 arranged on a lower part of the chimney cylinder 1. The smoke inlet 2 comprises a first side wall B and a second side wall C on a cross-section of the chimney cylinder 1. An angle α is formed between the first side wall B and a first tangent at an intersection of the first side wall B and an outer wall of the chimney cylinder 1, and the angle α is 60°. An angle β is formed between the second side wall C and a second tangent at an intersection of the second side wall C and the outer wall of the chimney cylinder 1, and the angle β is 45°.

Like Example 1, a baffle 3 has two ends, one end is disposed on a junction of the first side wall B of the smoke inlet 2 and an inner wall of the chimney cylinder 1, and the other end extends inside and close to a center of the chimney cylinder. The baffle is a folded plate shown in FIG. 5, an arc plate shown in FIG. 6, or a curved plate shown in FIG. 7. A plane b is limited by the end of the baffle 3 fixed on the chimney cylinder 1 and the other end of the baffle 3. An angle γ is formed between the plane b and a perpendicular line d of a tangent at a position where the baffle 3 is disposed, and the angle γ is 45°.

As shown in FIG. 4, place a new wall 4 having a certain thickness next to two side walls B′, C′ of a conventional smoke inlet, and chamfer a part of the new wall 4 to obtain the first side wall B and the second side wall C.

EXAMPLE 3

A chimney, as shown in FIGS. 1 and 8, comprises: a chimney cylinder 1, and a smoke inlet 2 arranged on a lower part of the chimney cylinder 1. The smoke inlet 2 comprises a first side wall B and a second side wall C on a cross-section of the chimney cylinder 1. A baffle 3 has two ends, one end is disposed on a junction of the first side wall B of the smoke inlet 2 and an outer wall of the chimney cylinder 1, and the other end extends inside the chimney cylinder. The baffle 3 is a curved plate. Also, the baffle 3 can be other shapes, and the baffle can be arranged on an outer wall of the chimney cylinder 1, or on the second side wall C of the smoke inlet.

While particular embodiments of the invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from the invention in its broader aspects, and therefore, the aim in the appended claims is to cover all such changes and modifications as fall within the true spirit and scope of the invention. 

The invention claimed is:
 1. A chimney, comprising: a) a chimney cylinder (1) comprising an outer wall, and b) a smoke inlet (2), said smoke inlet (2) arranged on a lower part of said chimney cylinder (1) and comprising a first side wall (B) and a second side wall (C) on a cross-section of said chimney cylinder (1); wherein an angle α is formed between said first side wall (B) and a first tangent at an intersection of said first side wall (B) and said outer wall, and 10°≦α≦90°; and an angle β is formed between said second side wall (C) and a second tangent at an intersection of said second side wall (C) and said outer wall, and 10°≦β≦90°.
 2. The chimney of claim 1, wherein said first side wall (B) and said second side wall (C) are formed by chamfering a part of two side walls (B′, C′) of a conventional smoke inlet.
 3. The chimney of claim 1, wherein said first side wall (B) and said second side wall (C) are formed by constructing a new wall (4) having a certain thickness next to two side walls (B′, C′) of a conventional smoke inlet, and chamfering a part of said new wall (4).
 4. The chimney of claim 1, wherein 20°≦α≦85°, and 20°≦β≦85°.
 5. The chimney of claim 3, wherein a groove is arranged on a lower side wall of said smoke inlet (2).
 6. The chimney of claim 1, wherein a baffle (3) is arranged on at least one side wall of said smoke inlet (2); said baffle (3) comprises two ends, one end is fixed on an inner wall, said outer wall, or a position between said inner wall and said outer wall of said chimney cylinder (1), and the other end extends inside said chimney cylinder (1); and said baffle (3) is a straight plate, a folded plate, an arc plate, or a curved plate.
 7. The chimney of claim 5, wherein a baffle (3) is arranged on at least one side wall of said smoke inlet (2); said baffle (3) comprises two ends, one end is fixed on an inner wall, said outer wall, or a position between said inner wall and said outer wall of said chimney cylinder (1), and the other end extends inside said chimney cylinder (1); and said baffle (3) is a straight plate, a folded plate, an arc plate, or a curved plate.
 8. The chimney of claim 6, wherein a plane (b) is limited by the end of said baffle (3) fixed on said chimney cylinder (1) and the other end of said baffle (3); an angle γ is formed between said plane (b) and a perpendicular line (d) of a tangent at a position where said baffle (3) is fixed; and said angle γ is between 0° and 80°.
 9. The chimney of claim 7, wherein a plane (b) is limited by the end of said baffle (3) fixed on said chimney cylinder (1) and the other end of said baffle (3); an angle γ is formed between said plane (b) and a perpendicular line (d) of a tangent at a position where said baffle (3) is fixed; and said angle γ is between 0° and 80°.
 10. The chimney of claim 8, wherein said angle γ is between 0° and 70°.
 11. The chimney of claim 9, wherein said angle γ is between 0° and 70°.
 12. The chimney of claim 6, wherein said baffle (3) is an arc protruding towards a center of said chimney cylinder (1).
 13. The chimney of claim 7, wherein said baffle (3) is an arc protruding towards a center of said chimney cylinder (1).
 14. The chimney of claim 1, wherein a cross-section of said smoke inlet (2) in a radial direction is in a shape of a polygon, a circle, or an ellipse.
 15. The chimney of claim 5, wherein a cross-section of said smoke inlet (2) in a radial direction is in a shape of a polygon, a circle, or an ellipse.
 16. The chimney of claim 7, wherein a cross-section of said smoke inlet (2) in a radial direction is in a shape of a polygon, a circle, or an ellipse. 